Coin-controlled test lifting-machine



(No Model.) 5 Sheets-Sheet 1.

J. LIGHTON.

COIN CONTROLLED TEST LIFTING MACHINE.

No. 425,436. I Patented Apr 15, 1890.

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(No Model.) 5 Sheets-Sheet 2. J. LIGHTON.

COIN CONTROLLED TEST LIFTING MACHINE.

No. 425,436. Patented Apr, 15, 1890.

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(No Model.) 5 Sheets-Sheet 3.

J. LIGHTON.

COIN GONTROLLBD TEST LIFTING MACHINE. No. 425,436. Patented Apr. 15, 1890.

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(No Model.)

, J LIGHTON COIN CONTROLLED TEST LIFTING MACHINE. No. 425,436.-

Patented Apr. 15, 1890.

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UNITED STATES ATENT Felon.

JOHN LIGHTON, OF SYRACUSE, NEW YORK.

COIN-CONTROLLED TEST LlFTlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 425,436, dated April 15, 1890.

Application filed August 20, 1888. Renewed Septemberfl, 1889. Serial No. 328,281. (No model.)

To all whom it may concern.-

Be it known that I, JOHN LIGHTON, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Coin-Controlled Test Lifting-Machines, of which the following, taken in connection with the accompanying 'draw ings, is a full, clear, and exact description.

My invention relates to improvements in coin-controlled test lifting-machines of the particular class which are designed to be placed in public places, and are adapted to be operated only upon the insertion of a proper coin, and when no coin is inserted are normally locked against operation, and it has for its object the production of 'a simple and effective device, which shall operate when the proper coin is inserted, and will be locked thereafter unless another coin be inserted; and to this end my invention consists, essentially, in the detail construction and arrangement of the parts, all as hereinafter more particularly described, and pointed out in the claims.

In specifying my invention reference is had to the accompanying drawings, in which the same letters and figures indicate the same or corresponding parts in all the views.

Figure 1 is a front elevation of my improved lift testing-machine. Fig. 2 is a back elevation, partly in section, of the main frame of the test-lifting machine with the outside casing removed, showing the normal position of the locking device, and :with the coin just inserted. Fig. 3 a vertical section of the device illustrated in Fig. 2, taken online 3 3. Fig. 4 is also a back elevation, partly in section, of my invention, but with the locking device and its bearing-plate removed for the purpose of clearly illustrating the operation and arrangement of the lifting-bar. Fig. 5 is a detached detail view of the upper threaded end of the lifting-bar and the lower end of the adjustable handle. Fig. 6 represents an enlarged detail in perspective of the lower end of the lifting-bar with its attached cross-bar carrying a stud for engaging with the locking device. Fig 7 is an enlarged detail of the indicating-finger with its stop device. Fig. Sis an elevation of a modified form of the locking device. Fig. 9 is a vertical section of the device illustrated in Fig. 7, taken on the line 9 9. Fig. 10 is an elevation of a further modification of the locking device. Fig. 11 is still another further modification of said locking device. Fig. 12 is a section taken on line 12 12, Fig. 3, illustrating the rack secured to the lifting-bar. Fig. 13 is an enlarged back elevation, partly in section, of the upper part of my improved test liftingcnachine, clearly illustrating the construction and arrangement of the handles and lifting-bar. Fig. 14 is a horizontal section taken on line 14 14:, Fig. 13, the stop-screw being shown in full lines, clearly illustrating the relative construction of the stop-screw, the adjustable handle-hub, and the guide-bearing for the same; and Fig. 15 is a horizontal section of the hub of the handle, the handle being inverted for the purpose of illustrating the annular shoulder provided thereon.

Arepresents the main frame of my improved test lifting-machine, preferably of a circular form and covered with a suitable outside casing A, which may be made highly ornamental. The frame A is connected to a desirable foot-brace B by means of any suitable hollow standard 0.

Formed or provided, and preferably in the upper part of the frame A, is the cross-frame D, which is opposite to alike cross-frame D, formed in the opposite or lower part of the frame A.

Bearing upon the lower cross-frame D, I provide the cross-bar E, secured to the lifting-bar E, which passes through the centerof the frame A, and at the upper end of which is provided a handle G, preferably adjustable, the construction of which will be hereinafter described.

Mounted on the crossbar E, I provide the springs 11, support-ed at their upper extremities by the upper cross-frame D, and which, together with their supporting cross-bar E, are guided in their movement by means of the upright rods R, the extremities of which rods are supported, respectively, in the upper and lower cross-frames D and D. For the purpose of readily inserting these upright rods R, I provide the tapering recesses R in the respective cross-frames, and while the tension of the springs would be sufiicient to retain these bars in their normal position, as

and thereby preventing binding of the springs and a consequent irregular registration of the power applied to the handle.

For the purpose of obviating undue movement of the springs and further insuring a regular registration of the power applied, I provide at their upper extremities a washer S, of metal or other suitable substance, pro-' vided with a shoulder S, against which the spring abuts, and a depending hub S which fits closely on the inside of the spring, and at the lower end of the springs H, I provide a recessed socket H in the cross-bar E, of a like diameter with the outside of the spring. The washers S and the recessed sockets H effectually prevent all side movement and cramping of the springs and insure their perfect motion. It will be observed that a washer similar to the one at the upper end of the spring could be used instead of the recessed socket H; but such is not my preferred construction and would not give as good results as the recessed sockets H.

For the purpose of allowing the machine to be adjusted to the heights of the difierent persons wishing to operate it, I provide the handle G with an elongated hub 5, having screw-threads at its lower end, which engage lower end to the cross-bar E and guided at its upper end by means of a suitable bearing or hub E formed on the frame A.

Secured to the lifting-bar E, as shown in Fig. 3, is the rack a, which engages with a pinion I), provided on the inner end of the shaft 0 in the diametrical center of the main frame A, journaled in the hub c provided on the front plate T. The outer end of the shaft 0 carries a small bent arm e, which, when the handle is elevated, carrying with it the lifting-bar E and its cross-bar E against the tension of the springs H, is rotated by means of the small spur-pinion b, actuated by the rack a, secured to the lifting-bar E, and forces the indicating-finger f around the dial h, registering the amount of force employed or the amount lifted. When the poweris withdrawn, the parts spring back to their normal position by reason of the action of the springs H, leaving the indicator-hand still registering the amount lifted, from which place it may be turned back at will to its normal position by means of a button g on the outside of the glass face g.

On one side, preferably the back or outer side, of the back plate P, I provide the spring-actuated dog is, pivoted thereon atone end and provided at the other end with a notch 70 with inclines k and 70 leading to the top and bottom of said notch 10 On the side of the cross-bar E, adjacent to the back plate P,I provide the stud U, which protrudes through a slot- U' in the back plate P and normally engages with the lower incline k of the notch 10 of the dog It, thus holding the dog is out and against the action of its spring Z, which is attached in any suitable manner to'the back plate P and bears against the dog It. As the lifting-bar E is raised with the cross-bar E, carrying with itthe stud v U, the lower endof the dog is rocked on its pivot is by the action of the spring 1 andthe lower incline k rides against the stud U, un-

til the notch 70 engages with said stud, thus stopping the further movement of the liftingbar.

For the purpose of allowing the machine to a be operated by the insertionof a coin, I provide the chute s, the upper end of which extends to the outside of the machine andinto.

which a coin is inserted, and the lower end extends through the main frame 'A and the standard 0 to a suitable receiving-chamber in said standard 0.

About midway the length of the lockingdog k, I provide a bearing-face .9 which might j be formed integral with said locking-dog, but

which is preferably mounted or formed upon an adjustable slide The slide j is held in a slot in the locking-dog by means of a suitaw ble set-screw, and byloosening said set-screw the slide may be adjusted in the dog, moving.

the bearing-face 5- toward or away from said do slide j, protrudes into the cut-out s in the coin-chute s and is preferably curved to,co-.

incide with the contour of the coin.

On the opposite side of the coin-chutea l" The bearing-face 3 mounted on said.

provide the stop-plate 'r, and as the coin when inserted slides down the chutes, it is stopped.

in its movement when it reaches the stop 0 a and the face 8 Thus, whenpower-is applied to the lifting-bar and the same is moved it, will be seen that the locking-dog is securelyheld against the action of the spring Zby means of the coin t interposed between said face 3 and stop 7*, and the notch 10 does not move and come in. contact with thestud U; and that, therefore, the lifting-bar'is allowed to continue its upward movement in the slot and passing the notch k rides along its v upper incline k forcing out the lower end of the locking-dog against the action of V the spring l, thus releasing the coin t and allowing the same to drop into the receiving-chamber and the parts to beautomatically locked on the return of the stud U. Itwill be observed that the coin-chute 8 may be formed here cut out, maybe used as an abutment for the coin.

In Figs. 8 and 9 I have shown a modified form of the locking device in which the lift ing-bar is provided with an arm 21., carrying a roller or hub to, which roller stops the but such modified forms of my locking-dog are essentially the same, and only represent the various ways in which it may be constructed without departing from my invention.

IVhen a person attempts to operate my machine without first insertingthe proper coin, the notch 1.2 will engage the stud U and prevent the upward movement of the handles. There is, however, a slight movement of the lifting-bar before the engagement of the notch k with the stud U, and if a quick jerk is given to the handle the bent arm 6, which is not connected or secured to the finger f, but operates the same forward only by contact therewith, strikes the said finger f with sufficient force to allow its momentum to cause the finger to move a considerable distance around the dial after the movement of the bent arm c has been checked by the engagement of the notch with the stud II. To

prevent such undue movement of the finger, I provide the stop f, preferably of the form illustrated in Fig. '7, which is fasten ed to the ring in separating the dial and the glass casing g. The free end of the finger f rides along this stop on the incline *1; until it reaches the raised portion 4), which is only sufficient to stop said undue momentum of the finger, and which does not interfere with its progress when a steady pressure is applied to the machine. The stop is also provided with the incline 71 leading up to the raised portion c, which allows the finger to be readily turn ed back over said raised portion when the registration of the lift has been indicated.

In machines of this character, as previously constructed, there has been no effective stop device of the adjustable handle G011 the lifting-bar E, and it will be readily seen that when said adjustable handle is screwed down an annular shoulder G, provided on the hub '5 of the handle G abuts against the top or seat G of the guide-bearing G on the outside of the casing A. The handle can be lowered no farther by reason of the abutment with its seat G yet at the same time it may be turned around, and by the engagement of its hub 5 with the threads of the lifting-bar 'E, the bar is drawn up against the action of the springs, and by reason of the great leverage the parts, and especially the locking-dog, will be unduly strained and their action seriously inj ured. To prevent this undue straining of the parts, I provide the stop-screw 1, which has an opposite thread to that formed on the lifting-bar, and screws into the upper end 2 of the lifting-bar E, and is of a larger diameter than the inside of the thread of said bar.

The handle, preferably of the form illustrated in Figs. 1, 2, and at, is provided with a central handle I for the purpose of allowing of a pull with one hand, which central handle I is preferably formed separate from the handle G, and is inserted in the socket I at its upper part, and is firmly secured therein by means of the pin I or other suitable means. The hub of the middle handle firmly secured to the handle G, and projecting within the socket I, is provided with the face or shoulder 6, and when the handle G is lowered to its lowest point this face or shoulder 6 abuts or contacts with the top face of the stop-screw 1, which screw is screwed in the topof the lifting-bar. This engagement of the face or shoulder 6 and the screw 1 causes the liftingbar to closely press against its seat D, prevents the further movement or turning of the handle, and is so timed as to stop said downward movement of the handle Gbefore its annular shoulder G reaches the shoulder or seat G of the guide-bearing G. If by wear of the parts the shoulder G should abut against the shoulder or seat G of the guidebearing G and prevent the abutment of the face or shoulder 6 against the stop-screw 1, it will readily be seen that by withdrawing the pin I and removing the middle handleI The hub 5 of the handle Gis provided with threads engaging like threads on the upper extremity of the lifting-bar, and is formed with a chamber 4: interposed between the face or shoulder 6 and the threads at the lower extremity of the hub 5. This chamber 4is of larger diameter than the stop-screw1, and when, to adapt the machine to a tall person, the handle is unscrewed or lengthened to its utmost capacity, the chamber a of the handle G readily passes by said screw 1, and the handle is unscrewed until the stop-screw 1 is abutted by the shoulder 3 of the thread formed on the lower extremity of the hub'5, which abutment stops the farther upward movement of the handle G, as shown in Fig.

5. The guide-bearing G, screwed or bolted that if no stop device were present to limit the upward movement of the adjustable hub 5 of the handle G, the hub 5 would be un-' screwed beyond its guide-bearing, permitting the threaded end of the lifting-bar to rock in said bearing G, thus allowing the parts to become disengaged and unduly strained, all of which is obviated by the stop-screw 1.

The operation of the device will be readily apparent from the foregoing description.

All the parts of my invention are very simple in construction and arrangement, and are Very cheaply manufactured, but are still positive in their action, and it'will be particularly noted that the operation does not depend upon the weight of the coin, which dependence would necessitate much more delicate construction of the parts, and render the same more'liable to get out of repair, but depends only upon the presence of the coin, the locking device acting directly upon its periphery. It will also be understood that when desirable two dogs might be used and other changes may be made in the various parts without departing from the spirit of my invention.

Having thus fully described-my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a test lifting-machine, the combination of a lifting-bar, and a stud rigidly secured thereto, with a pivoted spring-actuated locking-dog having one end lying normally in the path of the stud provided on the lifting-bar, a notch provided on the locking-dog, with inclines leading, respectively, from the top and bottom of said notch, and a bearing-face also provided on the locking-dog and lying normally in the path of the operating-coin, substantially as and for the purpose set forth.

2. The combination, with the handle of a test lifting-machine and its depending hub, of a lift-bar connected adjustably to the hub, a seat for the lift-bar, springs for tensioning the lift-bar and holding it normally toward its seat against strain applied to the handle, means, substantially as described, for loo-king the lift-bar when-no coin is inserted, and a stop device for preventing the change of tension on the lift-bar when adjusting the handle, substantially as and for the purpose set forth.

3. The combination of the handle G, having a central handle I and the threaded depending hub 5, with the lift-bar E and its springs H, means, substantially as described, for looking the lift-bar when no coin is inserted, the stop-screw 1, seated in the screw end 2 of the lift-bar and bearing against the hub of the central handle I and stopping the downward movement of the handle G, substantially as and for the purpose set forth.

4. In a test lifting-machine, the combination, with an adjustable handle provided with an elongated hub, the chambert in said elongated hub, the stop-face 6 in the upper end of the chamber 4, the screw-threads 3, formed on the inside of the chamber 4 and projecting therein, and a stop-screw 1, inserted in the upper end of the lift-bar E, of springs for tensioning the lift-bar, and means, substantially as described, for stopping the movement of the lift-bar when no coin is inserted, substantially as and for the purpose set forth.

5. The combination, with the chute s, having a cut-out s, of the pivoted dog 70, the stop r, the sliding stop j, means, substantially as described, for operating the dog, the liftbar E, having a handle, and springs for tensioning the lift-bar, substantially as and for the purpose set forth.

6. The combination, in a test lifting-ma chine, of a handle,a lift-bar connected there-' pending hub fitting the coil of the extremity 9 of the spring, a stud secured to the lift-bar, a pivoted spring-actuated locking-dog a notch provided on the locking-dog, and a bearingface lying normally in the path of the operating-coin, substantially as and for the purpose set forth.

In testimony whereof Ihavehereunto signed my name, in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 16th day of August, 1888.

WVitnesses:

FREDERICK H. Games, A. E. PARSONS.

JOHN LIGHTON, 

